Options on 3" Catbacks?
Drifting
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From: silver creek ga
Race Director
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From: Think BEFORE hitting "Submit Reply"
Melting Slicks
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From: Conway AR
Race Director
Joined: Jul 2005
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From: Think BEFORE hitting "Submit Reply"
Sort of hard to tell.
When I dynoed with the old setup(Tis'/no cats/2.5" exhaust) it was on a Mustang dyno in inertia mode, comparable to Dynojet #'s.
571/606 SAE
When I recently dynoed, it was on a Mustang Dyno in full eddy current mode, and made 560/570 SAE.
Full 3" exhaust/ Big3"/ 3" cats
uncorrected it was 596/608
My friend owns the dyno/shop, and told me it would have been well over 600rwhp SAE on a dynojet, based on his experience-he has dynoed probably over 500 different cars-so I'll guess he is pretty accurate.
I do intend to hit a local Dynojet near me in the spring with no changes to the setup(i.e.-boost) so I should have some idea at that point.
However, I just (after I dynoed recently)did some inlet mods to free up charge air into the turbos, so that may have an even greater effect on my results, especially at the top rpm range.
I do expect on my TT setup, it made a difference.
Considering on a NA setup at LG, it made an additional 20rwhp or so, it should do even better on FI, especially turbo.
Still, I don't want to make any blatant assumptions, but I do think it helps.
Alot of variables, but should know more in the spring.
When I dynoed with the old setup(Tis'/no cats/2.5" exhaust) it was on a Mustang dyno in inertia mode, comparable to Dynojet #'s.
571/606 SAE
When I recently dynoed, it was on a Mustang Dyno in full eddy current mode, and made 560/570 SAE.
Full 3" exhaust/ Big3"/ 3" cats
uncorrected it was 596/608
My friend owns the dyno/shop, and told me it would have been well over 600rwhp SAE on a dynojet, based on his experience-he has dynoed probably over 500 different cars-so I'll guess he is pretty accurate.
I do intend to hit a local Dynojet near me in the spring with no changes to the setup(i.e.-boost) so I should have some idea at that point.
However, I just (after I dynoed recently)did some inlet mods to free up charge air into the turbos, so that may have an even greater effect on my results, especially at the top rpm range.
I do expect on my TT setup, it made a difference.
Considering on a NA setup at LG, it made an additional 20rwhp or so, it should do even better on FI, especially turbo.
Still, I don't want to make any blatant assumptions, but I do think it helps.
Alot of variables, but should know more in the spring.
